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Accepted
zozo
Asked: 2011-06-24 06:06:06 +0800 CST

Transfer files using ssh

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I am using ssh (WinSCP) to transfer some files from a server to my workstation.

The problem is that at some files I get disconnected. Always same files. I am the owner of the directory so I guess the file permissions is not a problem. (Also I set the permissions to 777). Is there a size limit or something like that?

Protocol is SFTP, server is 32bit machine. Files are 100MB tops.

Added:

Worked with Filezilla using ftp. This temporarily fix the problem but is not exactly a solution since maybe next time I won't have root access to create a ftp account

file-transfer ssh winscp

5 Answers

  1. Are the files that you get disconnected on quite large ? Perhaps you need to configure keepalive in winscp. In the Login Dialog->Connection Section turn keepalives on by selecting one of the options. The default 30s should be sufficient for the time between keepalives.

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  2. Can you use another program than WinSCP for testing and set debugging / verbose mode on? Or maybe WinSCP has that too. It might give you good information about why the connection was dropped.

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  3. Best Answer

    Some options:

    Try one problem file on its own

    Try using another client (FileZilla?)

    Try via a command line ?

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  4. Is this transfer going through a Firewall or Intrusion Prevention device? They can easily cut connections based on flaky signatures, weird flags, etc. it's also possible a Antivirus scanner could pull off the same thing.

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  5. I would compress the files into a tar ball. And then transfer just the one file across. It will be a lot quicker. Then SSH into the target server, and uncompressed it.

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